﻿/*
  Box2D.Net Copyright © 2020 Ben Ukhanov & Hugh Phoenix-Hulme https://github.com/benzuk/box2d-netstandard
  Box2DX Copyright (c) 2009 Ihar Kalasouski http://code.google.com/p/box2dx
  
// MIT License

// Copyright (c) 2019 Erin Catto

// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:

// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
*/

using System.Numerics;
using Box2D.Net.Common;

namespace Box2D.Net.Collision.Shapes
{
    /// <summary>
    ///  A shape is used for collision detection. You can create a shape however you like.
    ///  Shapes used for simulation in World are created automatically when a Fixture is created.
    /// </summary>
    public abstract class Shape
    {
        internal float m_radius;
        internal abstract byte ContactMatch { get; }

        public abstract Shape Clone();
        public abstract int GetChildCount();
        public abstract bool TestPoint(in Transform xf, in Vector2 p);

        public abstract bool RayCast(
            out RayCastOutput output,
            in RayCastInput input,
            in Transform transform,
            int childIndex);

        public abstract void ComputeAABB(out AABB aabb, in Transform xf, int childIndex);

        public abstract void ComputeMass(out MassData massData, float density);
    }
}